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Session Report

Summary:
Test run at: 2017-09-27 07:39:04 GMT
Client Prefix (v4): 61.26.230.x/24
Client AS (v4): 9824 (JTCL-JP-AS)
IPv4 Probes: 117
Client Prefix (v6): 2001:200:1xx::/40
Client AS (v6): 2500 (WIDE-BB)
IPv6 Probes: 77
Outbound spoofing summary (from the client to our server)
Source address type IPv4IPv6
Private - RFC1918 or ULA rewrittenreceived
Routable rewrittenreceived
Largest spoofable neighbor prefix length none/16

Meaning of result status in column:

receivedSpoofed packet was received.Pattern of tests from this IP block indicates a switch from allowing spoofing to blocking it.
rewrittenSpoofed packet was received, but the source address was changed en route.
blockedSpoofed packet was not received, but unspoofed packet was.
unknownNeither spoofed nor unspoofed packet was received.

Warnings:

IPv4 AS Route:
This test run probed the following paths in order to infer your ability to send different spoofed source packets. Each node in the graph corresponds to an autonomous system, i.e. different Internet service providers. NOTE: This graph does NOT show if an AS blocks spoofed packets, only the path taken by received spoofed packets. The IP Path Details are available for this run. If non-spoofed packets weren't received at a destination, the traceroute to that destination is not included in this graph and may even cause a totally empty graph.

  

  

IPv4 Adjacent Netblock Testing:

Your host (61.26.230.x/24) can spoof 0 neighboring addresses


Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
61.26.230.x/24/319824rewritten
61.26.230.x/24/309824rewritten
61.26.230.x/24/299824rewritten
61.26.230.x/24/289824rewritten
61.26.230.x/24/279824rewritten
61.26.230.x/24/269824rewritten
61.26.230.x/24/259824rewritten
61.26.230.x/24/249824rewritten
61.26.231.x/24/239824rewritten
61.26.228.x/24/229824rewritten
61.26.226.x/24/219824rewritten
61.26.238.x/24/209824rewritten
61.26.246.x/24/199824rewritten
61.26.198.x/24/189824rewritten
61.26.166.x/24/179824rewritten
61.26.102.x/24/169824rewritten
61.27.230.x/24/159824rewritten
61.24.230.x/24/149824rewritten
61.30.230.x/24/139924rewritten
61.18.230.x/24/129908rewritten
61.10.230.x/24/119908rewritten
61.58.230.x/24/109676rewritten
61.90.230.x/24/97470rewritten
61.154.230.x/24/84134rewritten

Meaning of status in Received column:

rewrittenThe source address of the probe packets we received differs from the spoofed address. It appears that an intermediate device is rewriting your packet headers.

IPv4 Outbound Filtering Depth:

The tracefilter test found your host able to spoof routable, non-adjacent source addresses through the first 1 IP hop(s).
IPv6 AS Route:
This test run probed the following paths in order to infer your ability to send different spoofed source packets. Each node in the graph corresponds to an autonomous system, i.e. different Internet service providers. NOTE: This graph does NOT show if an AS blocks spoofed packets, only the path taken by received spoofed packets. The IP Path Details are available for this run. If non-spoofed packets weren't received at a destination, the traceroute to that destination is not included in this graph and may even cause a totally empty graph.

  

  
IPv6 probes:
Spoofed source addressDestinationReceived
2001:4978:1fb:6400::d22001:388:1:5001:21c:c0ff:fea2:4a3ayes
2001:49aa:111:aa00::112001:388:1:5001:21c:c0ff:fea2:4a3ayes
fd11:1111:1111::11112001:388:1:5001:21c:c0ff:fea2:4a3ayes
2001:4978:1fb:6400::d22001:410:102:1::78yes
2001:49aa:111:aa00::112001:410:102:1::78yes
fd11:1111:1111::11112001:410:102:1::78yes
2001:4978:1fb:6400::d22001:410:90ff::5yes
2001:49aa:111:aa00::112001:410:90ff::5yes
fd11:1111:1111::11112001:410:90ff::5yes
2001:4978:1fb:6400::d22001:48d0:101:501::242yes
2001:49aa:111:aa00::112001:48d0:101:501::242yes
fd11:1111:1111::11112001:48d0:101:501::242yes
2001:4978:1fb:6400::d22001:48d0:101:501::247yes
2001:49aa:111:aa00::112001:48d0:101:501::247yes
fd11:1111:1111::11112001:48d0:101:501::247yes
2001:4978:1fb:6400::d22001:610:510:115:192:42:115:98yes
2001:49aa:111:aa00::112001:610:510:115:192:42:115:98no
fd11:1111:1111::11112001:610:510:115:192:42:115:98no
2001:4978:1fb:6400::d22001:630:212:225:225:90ff:fe0c:45a6yes
2001:49aa:111:aa00::112001:630:212:225:225:90ff:fe0c:45a6yes
fd11:1111:1111::11112001:630:212:225:225:90ff:fe0c:45a6no
2001:4978:1fb:6400::d22001:708:40:2001:21c:c0ff:fea2:4c5cyes
2001:49aa:111:aa00::112001:708:40:2001:21c:c0ff:fea2:4c5cyes
fd11:1111:1111::11112001:708:40:2001:21c:c0ff:fea2:4c5cno
2001:4978:1fb:6400::d22001:770:18:7:225:90ff:fe0c:acb4yes
2001:49aa:111:aa00::112001:770:18:7:225:90ff:fe0c:acb4yes
fd11:1111:1111::11112001:770:18:7:225:90ff:fe0c:acb4no
IPv6 Adjacent Netblock Testing:
Spoofed source address (anon)Prefix
Length
ASN of spoofed
source address
Received
2001:200:1xx::/40/1202500yes
2001:200:1xx::/40/1122500yes
2001:200:1xx::/40/1042500yes
2001:200:1xx::/40/962500yes
2001:200:1xx::/40/882500yes
2001:200:1xx::/40/802500yes
2001:200:1xx::/40/722500yes
2001:200:1xx::/40/642500yes
2001:200:1xx::/40/562500yes
2001:200:1xx::/40/482500yes
2001:200:1xx::/40/402500yes
2001:200:81xx::/40/324690yes
2001:280:1xx::/40/24UNROUTEDyes
2001:8200:1xx::/40/161221yes

Meaning of status in Received column:

yesPackets spoofed from adjacent netblock were received
yesPackets spoofed from adjacent netblock were received (but that netblock is within the source AS)
Summary:
The results from all tests are aggregated to produce a summary "State of IP Spoofing" report.
Feedback:
We welcome questions and feedback to the Spoofer Information Mailing List and invite users to join the Spoofer Users Mailing List for discussion and announcements.
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